An assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).
0.1410 inches nominal cone corner radius, steel overall material, c141 acft,nsl gear end item identification, 3.8125 inches nominal bore diameter, 1.1406 inches nominal cone width